Erasure Multiple Descriptions
نویسندگان
چکیده
منابع مشابه
Multiple description coding over multiple correlated erasure channels
This paper examines the use of Multiple Description Coding (MDC) for information transmission over multiple correlated erasure channels. It addresses the problem of optimal rate allocation between descriptions to attain the minimum possible average distortion at the receiver. The rate allocation problem is formulated on the basis of rate-distortion theory for the general case of unbalanced MDC ...
متن کاملAchievable rates for multiple descriptions
Consider a sequence of independent identically distributed where I(.) denotes Shannon mutual information. These rates are shown to be optimal for deterministic distortion measures.
متن کاملIterative Decoding of Multiple Descriptions
This paper considers the transmission of multiple descriptions over noisy channels rather than the on-oo channels that are traditionally considered. We introduce the use of iterative decoding techniques similar to those used in \turbo" decoding to decode multiple correlated descriptions transmitted over a noisy channel. For a given transmission rate per channel and a given channel state, the ee...
متن کاملMultiple Descriptions , Error Concealment , and Re ned Descriptions for Image
{ This paper demonstrates the conservative nature of a multiple description approach to image and video coding, by showing that error con-cealment of a sub-optimally partitioned coded image stream yields comparable results under realistic conditions. Rather than use the non-orthogonal transforms of multiple description coding, which result in excess rate when both streams are received, a standa...
متن کاملSoft decoding of multiple descriptions
A multiple description scalar quantization (MDSQ) based coding system can be regarded as a source coder (quantizer) followed by a channel coder, i.e. the combination of index and codeword assignment. The redundancy, or the correlation between the descriptions, is controlled by the number of diagonals covered by the index assignment. In this paper, we analyse dependencies between the variables i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Information Theory
سال: 2012
ISSN: 0018-9448,1557-9654
DOI: 10.1109/tit.2011.2177749